Refactor CLI into cmd directory and delete unused code (#19)

This change moves the dicomutil command line tool into the cmd/ folder as per #14. This change also deletes currently unused dead code, and updates gitignores.

.gitignore

@@ -1,37 +1,9 @@
 # binary
 dicom
 
-# Compiled Object files, Static and Dynamic libs (Shared Objects)
-*.o
-*.a
-*.so
-
-# Folders
-_obj
-_test
-
-# Architecture specific extensions/prefixes
-*.[568vq]
-[568vq].out
-
-*.cgo1.go
-*.cgo2.c
-_cgo_defun.c
-_cgo_gotypes.go
-_cgo_export.*
-
-_testmain.go
-
-*.exe
-*.test
-*.prof
-
 *.DS_Store
 *.sublime-*
 
-# Test files
-out
-
 .idea
 build
 vendor

Makefile

@@ -4,11 +4,11 @@ BINARY = dicomutil
 build:
 	dep ensure
 	$(MAKE) test
-	go build -o build/${BINARY} ./dicomutil
+	go build -o build/${BINARY} ./cmd/dicomutil
 
 .PHONY: build-fast
 build-fast:
-	go build -o build/${BINARY} ./dicomutil
+	go build -o build/${BINARY} ./cmd/dicomutil
 
 .PHONY: test
 test:
@@ -23,6 +23,6 @@ run:
 release:
 	dep ensure
 	$(MAKE) test
-	GOOS=linux GOARCH=amd64 go build -o build/${BINARY}-linux-amd64 ./dicomutil;
-	GOOS=darwin GOARCH=amd64 go build -o build/${BINARY}-darwin-amd64 ./dicomutil;
-	GOOS=windows GOARCH=amd64 go build -o build/${BINARY}-windows-amd64.exe ./dicomutil;
+	GOOS=linux GOARCH=amd64 go build -o build/${BINARY}-linux-amd64 ./cmd/dicomutil;
+	GOOS=darwin GOARCH=amd64 go build -o build/${BINARY}-darwin-amd64 ./cmd/dicomutil;
+	GOOS=windows GOARCH=amd64 go build -o build/${BINARY}-windows-amd64.exe ./cmd/dicomutil;